Opportunities for seaweed biorefinery

Lange, Lene; Bak, Urd Grandorf; Hansen, Steffen Cole Brandstrup; Gregersen, Ólavur; Harmsen, P.F.H.; Karlsson, Eva Nordberg; Meyer, Anne S.; Mikkelsen, Maria Dalgaard; Broek, Ben van den; Hreggviðsson, Guðmundur Ó.

doi:10.1016/b978-0-12-817943-7.00001-9

Cited by 17 publications

(13 citation statements)

References 28 publications

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“…Public support (including financial incentives) is also needed to support the development and commercialization of innovations that tend to have significant technical, economic, environmental and/or social benefits. Examples of such innovations include, among others, (i) tube-net technique suitable for growing warm-water red seaweeds in areas with strong currents (Mantri, Shah and Thiruppathi, 2020); (ii) land-based tank culture systems that provide better-controlled environment conditions to optimize the quality, safety and traceability of seaweed products (Gadberry et al, 2019); (iii) species diversification and crop rotation that tend to help reduce the risk of disease, deter grazing by herbivores and improve crop yield (Grebe et al, 2019); (iv) technologies to prevent the contamination of non-target species in large-scale open systems of microalgae cultivation; (v) technologies that reduce the high cost of harvesting microalgae in large-scale cultivation, which has been a major constraint deterring investments in large-scale microalgae cultivation; (vi) resourceefficient biorefinery technologies that convert algae biomass into different products (Lange et al, 2020); (vii) product improvement, such as the removal of undesirable tastes, better texture, more appealing appearance and longer shelf-life; and (viii) integration of seaweeds in local cuisine and innovative recipes.…”

Section: Innovation As Game Changermentioning

confidence: 99%

Seaweeds and microalgae: an overview for unlocking their potential in global aquaculture development

2021

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The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO in preference to others of a similar nature that are not mentioned.The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO.

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Section: Innovation As Game Changermentioning

confidence: 99%

Seaweeds and microalgae: an overview for unlocking their potential in global aquaculture development

2021

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“…The trend is to develop new and simple bioprocesses that allow a combination of high added-value products to be recovered, not just one product. For example, a fucoidan, with health benefits and nutritional benefits, could be placed in the market as one product (Lange et al, 2020). To achieve this, new biotechnologies specifically designed for macroalgae must be developed.…”

Section: A Proposal For a Sargasso Biorefinerymentioning

confidence: 99%

Commercial Potential of Pelagic Sargassum spp. in Mexico

et al. 2021

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The recent periodic influx of massive quantities of pelagic Sargassum spp. (sargasso) into the Caribbean has posed ecological, social, and economic challenges to the region. Sustainable use of the biomass is crucial to mitigate negative impacts of beached algae. The current uses of sargasso in Mexico are reviewed, and a biorefinery approach is proposed to optimize its commercialization. The commercialization potential of sargasso in the Mexican Caribbean is analyzed using the strengths, weaknesses, opportunities, and threats (SWOT) analysis. The unpredictability of the influx to the Mexican shores is considerable, both in time and space, also, some areas receive consistently more sargasso than others. The lack of available technology, local infrastructure and regulations concerning sargasso are relevant, as is the urgent need to establish proper regulatory measures. In the context of the Mexican legal system, the category “special waste” can best be applied to sargasso that is collected from the beach or nearshore waters for the purpose of regulation. Lessons learnt from in Mexico may be applied elsewhere, with adaptations for each specific location. More importantly, mutual understanding of the constraints and possibilities of sargasso management in other countries, or territories, may facilitate the coordinated management of this transboundary macroalgae bloom.

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“…Seaweeds are known for their high yields of potentially edible, high-quality protein in proportion to their dry weight (Bleakley and Hayes, 2017; Kazir et al, 2019). Seaweeds are also regarded as an important source of nutrients, vitamins, minerals, and trace elements, with broad commercial applications in food, feed, fertilizers, pharmaceuticals, nutraceuticals, and cosmetics (Charoensiddhi et al, 2020) and are considered to have potential environmental benefits (Lange et al, 2020). Numerous methods have been developed for the optimizing algae cultivation, enhancing functional traits, and reducing variability in the concentrations of functional traits, but all these methods are limited in that they are time-consuming, lack precision and are dependent on laboratory measurements.…”

Section: Introductionmentioning

confidence: 99%

Phenotyping technology for assessing protein content in seaweed by field spectroscopy and a machine learning algorithm

Tadmor-Shalev

Ghermandi

Tchernov

et al. 2022

Preprint

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Determining seaweed protein concentration and the associated phenotype is critical for food industries that require precise tools to moderate concentration fluctuations and attenuate risks. Algal protein extraction and profiling have been widely investigated, but content determination involves a costly, time-consuming, and high-energy, laboratory-based fractionation technique. The present study examines the potential of field spectroscopy technology as a precise, high-throughput, non-destructive tool for on-site detection of red seaweed protein concentration. By using information from a large dataset of 144 Gracilaria sp. specimens, studied in a land-based cultivation set-up, under six treatment regimes during two cultivation seasons, and an artificial neural network, machine learning algorithm and diffuse visible–near infrared reflectance spectroscopy, predicted protein concentrations in the algae were obtained. The prediction results were highly accurate (R2 = 0.95; RMSE = 0.84), exhibiting a high correlation with the analytically determined values. External validation of the model derived from a separate trial, exhibited even better results (R2 = 0.99; RMSE = 0.45). This model, trained to convert phenotypic spectral measurements and pigment intensity into accurate protein content predictions, can be adapted to include diversified algae species and usages.

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Opportunities for seaweed biorefinery

Cited by 17 publications

References 28 publications

Seaweeds and microalgae: an overview for unlocking their potential in global aquaculture development

Seaweeds and microalgae: an overview for unlocking their potential in global aquaculture development

Commercial Potential of Pelagic Sargassum spp. in Mexico

Phenotyping technology for assessing protein content in seaweed by field spectroscopy and a machine learning algorithm

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